I've used the geographically weighted regression tool to do this. There's a good tutorial on this in the resources centre (search for GWR or OLS) that explains the assumptions / limitations of using correlation on spatial data (issues of spatial autocorrelation etc) and shows you how to use the tools. As far as I understand, both your datasets have to be shapefiles - it doesn't work on raster data. I used zonal tools to aggregate my raster data to zones.
Hope this helps,
Can you explain to me how you managed to do your correlation analysis-cause i also have quite a similar problem now with nominal data in ArcGIS. I am tryna correlate vegetation type with soil type. they are in shapefile format both are polygons.please help
im sorry for writing on this old thread but i have exactly the same problem: i want to see the relationship between soil type and vegetation type and to quantify the significance of the correlation. with probably the same output as you stated above, of soil "A" contains XX% of veg type "B", etc. Please help me on this one.
I have a "similar" question that I need to answer and I don't know what tool to use. Specifically I want to see the relationship between soil type and vegetation type. It's not a 1:1 relationship so I'm looking for some output that will basically say; Soil "A" contains XX% of veg type "B", XX% of veg type "C"....
Any thoughts on how to do this?
Thanks ahead for your answers.